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Asset retirement obligations
12 Months Ended
Dec. 31, 2018
Notes to Financial Statements  
6. Asset retirement obligations

The Company's asset retirement obligations represent the estimated present value of the estimated cash flows the Company will incur to plug, abandon and remediate its producing properties at the end of their productive lives, in accordance with applicable state laws. Market risk premiums associated with asset retirement obligations are estimated to represent a component of the Company's credit-adjusted risk-free rate that is utilized in the calculations of asset retirement obligations.

 

The Company's asset retirement obligation transactions during the years ended December 31, 2018 are summarized in the table below. There were no asset retirement obligations in 2017.

 

    For the year ended December 31, 2018  
       
Asset retirement obligations, beginning of period   $ 0  
Liabilities assumed in acquisitions     228,721  
Accretion expense     1,929  
Asset retirement obligation, end of period   $ 230,650